Shops across southern and eastern Australia have sold out of fans and many will not be reordering any despite heatwave-level temperatures forecast throughout much of February.

Nine.com.au phoned Bunnings and Kmart stores in Brisbane, Sydney, Melbourne and Adelaide. Stores in Perth were not phoned as the city is not forecast to reach extreme temperatures this weekend.

Bunnings Penrith, where the temperature is tipped to be 42 degrees at 4pm on Friday, had completely sold out of fans.

"Even the dearer ones," a shop assistant noted, when phoned by nine.com.au.

Dearer the more expensive models certainly are, with the only pedestal fans still in stock at Bunnings Underwood - near Logan, in Brisbane, where temperatures are tipped to reach 42 degrees on Sunday - being a $190 Delonghi VLT3000. When Nine.com.au phoned at 12pm, the shop assistant said there were approximately four still available.

Luckily for shoppers at Bunnings Frankston, in Melbourne's greater south, and Parafield, in Adelaide's north, there are "plenty" of $11.80 fans available.

However, Kmart customers have not been as lucky.

Of the four Kmart stores situated near the Bunnings locations mentioned above, only one still had "about six" fans in stock. It should be noted the in-stock fans were not pedestal fans, but bench fans worth $25-35.

A customer service representative at one of the Kmart stores phoned said Kmart would not be reordering any fans and the store would be preparing for winter by stocking heaters next month.

A Kmart spokesperson would not confirm to nine.com.au whether the company would no longer stocking pedestal fans until next Summer.

"With the warmer weather experienced this summer in NSW and predicted for the next few days, Kmart has experienced an increase in the popularity of fans," the spokesperson told nine.com.au.

Those suffering through the heat have taken to social media to vent about the lack of fans for sale.

"Even Kmart or Target couldn't help but I found a fan finally," Derek Kerr said, tagging himself at Bunnings Warehouse Alexandria in inner-Sydney.

"Target, Big W and Kmart all sold out of fans Only a few left at a few other stores in Penrith," Lisa Cook wrote on Facebook.